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The Chemical Glossary currently has 651 chemical entries. You may search the Chemical Glossary by entering the keyword in the search box or by browsing the entire chemical glossary by letter in alphabetical order.

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Alkynes

Unsaturated hydrocarbons that contain one or more carbon-carbon triple bonds.

Alkali Metals

Metals of Group IA (Na, K, Rb).

Hydrolysis Constant

An equilibrium constant for a hydrolysis reaction.

Rate-law Expression

Equation relating the rate of a reaction to the concentrations of the reactants and the specific rate of the constant.

Bond Energy

The amount of energy necessary to break one mole of bonds of a given kind (in gas phase).The amount of energy necessary to break one mole of bonds in a substance, dissociating the sustance in the gaseous state into atoms of its elements in the gaseous state.

Activity Series

A listing of metals (and hydrogen) in order of decreasing activity.

Differential Scanning Calorimetry (DSC)

A technique for measuring the temperature, direction, and magnitude of thermal transitions in a sample material by heating/cooling and comparing the amount of energy required to maintain its rate of temperature increase or decrease with an inert reference material under similar conditions.

Basic Anhydride

The oxide of a metal that reacts with water to form a base.

Gangue

Sand, rock, and other impurities surrounding the mineral of interest in an ore.

Atomic Weight

Weighted average of the masses of the constituent isotopes of an element, The relative masses of atoms of different elements.